| Abstract: | An experiment was conducted to test the effect of doubling the amount of work required of Ss after loss of sleep. Ss were required to detect defined sequences of 3 digits ("signals") within an apparently random series. Digits were presented continuously for 30 min. either at 1 per sec. (slow) or 2 per sec. (fast). The slow condition contained 20 signals; the fast condition 40. Slow and fast groups were tested on 3 successive days of a 60-hr. vigil and 2 similar groups under control conditions. The results showed that loss of sleep affects performance under fast less than under slow. These and other results suggested that stimulation reduces the effect of sleepiness on performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
